Also need help finding test statistic and null hypothesis

Espanol Frozen computer: A computer system administrator noticed that computers running a particular operating system seem to freeze up more often as the installation of the operating system ages. She measures the time (in minutes) before freeze-up for 6 computers one month after installation and for 6 computers seven months after installation. The results are shown. Can you conclude that the time to freeze-up differs in variability In the seventh month and the first month after installation? Let o, denote the variability in time to freeze-up in the first month after Installation. Use the a = 0.05 level and the critical value method with the table. One month: 215.9 235.1 225.6 244.4 245.3 207.4 Seven months: 127.3 201.3 174.2 246.2 149.4 84.3 Send data to Excel State the null and alternate hypothesis. Ho: 10 0=0 H 0#0 01 02 This is a (Choose one) V | test. X Find the critical value. Round the answer to two decimal places. The critical value fo.025 is X